/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.service.autofill;
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import static android.service.autofill.AutofillServiceHelper.assertValid;
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import static android.service.autofill.FillRequest.INVALID_REQUEST_ID;
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import static android.view.autofill.Helper.sDebug;
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import android.annotation.IntDef;
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import android.annotation.NonNull;
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import android.annotation.Nullable;
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import android.annotation.TestApi;
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import android.app.Activity;
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import android.content.IntentSender;
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import android.content.pm.ParceledListSlice;
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import android.os.Bundle;
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import android.os.Parcel;
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import android.os.Parcelable;
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import android.view.autofill.AutofillId;
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import android.widget.RemoteViews;
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import com.android.internal.util.Preconditions;
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import java.lang.annotation.Retention;
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import java.lang.annotation.RetentionPolicy;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.List;
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/**
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* Response for an {@link
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* AutofillService#onFillRequest(FillRequest, android.os.CancellationSignal, FillCallback)}.
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*
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* <p>See the main {@link AutofillService} documentation for more details and examples.
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*/
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public final class FillResponse implements Parcelable {
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/**
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* Flag used to generate {@link FillEventHistory.Event events} of type
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* {@link FillEventHistory.Event#TYPE_CONTEXT_COMMITTED}—if this flag is not passed to
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* {@link Builder#setFlags(int)}, these events are not generated.
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*/
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public static final int FLAG_TRACK_CONTEXT_COMMITED = 0x1;
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/**
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* Flag used to change the behavior of {@link FillResponse.Builder#disableAutofill(long)}—
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* when this flag is passed to {@link Builder#setFlags(int)}, autofill is disabled only for the
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* activiy that generated the {@link FillRequest}, not the whole app.
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*/
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public static final int FLAG_DISABLE_ACTIVITY_ONLY = 0x2;
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/** @hide */
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@IntDef(flag = true, prefix = { "FLAG_" }, value = {
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FLAG_TRACK_CONTEXT_COMMITED,
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FLAG_DISABLE_ACTIVITY_ONLY
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})
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@Retention(RetentionPolicy.SOURCE)
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@interface FillResponseFlags {}
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private final @Nullable ParceledListSlice<Dataset> mDatasets;
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private final @Nullable SaveInfo mSaveInfo;
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private final @Nullable Bundle mClientState;
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private final @Nullable RemoteViews mPresentation;
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private final @Nullable RemoteViews mHeader;
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private final @Nullable RemoteViews mFooter;
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private final @Nullable IntentSender mAuthentication;
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private final @Nullable AutofillId[] mAuthenticationIds;
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private final @Nullable AutofillId[] mIgnoredIds;
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private final long mDisableDuration;
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private final @Nullable AutofillId[] mFieldClassificationIds;
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private final int mFlags;
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private int mRequestId;
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private final @Nullable UserData mUserData;
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private FillResponse(@NonNull Builder builder) {
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mDatasets = (builder.mDatasets != null) ? new ParceledListSlice<>(builder.mDatasets) : null;
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mSaveInfo = builder.mSaveInfo;
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mClientState = builder.mClientState;
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mPresentation = builder.mPresentation;
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mHeader = builder.mHeader;
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mFooter = builder.mFooter;
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mAuthentication = builder.mAuthentication;
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mAuthenticationIds = builder.mAuthenticationIds;
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mIgnoredIds = builder.mIgnoredIds;
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mDisableDuration = builder.mDisableDuration;
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mFieldClassificationIds = builder.mFieldClassificationIds;
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mFlags = builder.mFlags;
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mRequestId = INVALID_REQUEST_ID;
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mUserData = builder.mUserData;
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}
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/** @hide */
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public @Nullable Bundle getClientState() {
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return mClientState;
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}
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/** @hide */
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public @Nullable List<Dataset> getDatasets() {
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return (mDatasets != null) ? mDatasets.getList() : null;
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}
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/** @hide */
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public @Nullable SaveInfo getSaveInfo() {
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return mSaveInfo;
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}
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/** @hide */
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public @Nullable RemoteViews getPresentation() {
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return mPresentation;
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}
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/** @hide */
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public @Nullable RemoteViews getHeader() {
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return mHeader;
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}
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/** @hide */
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public @Nullable RemoteViews getFooter() {
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return mFooter;
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}
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/** @hide */
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public @Nullable IntentSender getAuthentication() {
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return mAuthentication;
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}
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/** @hide */
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public @Nullable AutofillId[] getAuthenticationIds() {
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return mAuthenticationIds;
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}
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/** @hide */
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public @Nullable AutofillId[] getIgnoredIds() {
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return mIgnoredIds;
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}
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/** @hide */
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public long getDisableDuration() {
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return mDisableDuration;
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}
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/** @hide */
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public @Nullable AutofillId[] getFieldClassificationIds() {
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return mFieldClassificationIds;
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}
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/** @hide */
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public @Nullable UserData getUserData() {
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return mUserData;
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}
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/** @hide */
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@TestApi
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public int getFlags() {
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return mFlags;
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}
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/**
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* Associates a {@link FillResponse} to a request.
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*
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* <p>Set inside of the {@link FillCallback} code, not the {@link AutofillService}.
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*
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* @param requestId The id of the request to associate the response to.
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*
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* @hide
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*/
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public void setRequestId(int requestId) {
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mRequestId = requestId;
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}
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/** @hide */
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public int getRequestId() {
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return mRequestId;
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}
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/**
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* Builder for {@link FillResponse} objects. You must to provide at least
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* one dataset or set an authentication intent with a presentation view.
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*/
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public static final class Builder {
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private ArrayList<Dataset> mDatasets;
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private SaveInfo mSaveInfo;
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private Bundle mClientState;
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private RemoteViews mPresentation;
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private RemoteViews mHeader;
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private RemoteViews mFooter;
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private IntentSender mAuthentication;
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private AutofillId[] mAuthenticationIds;
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private AutofillId[] mIgnoredIds;
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private long mDisableDuration;
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private AutofillId[] mFieldClassificationIds;
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private int mFlags;
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private boolean mDestroyed;
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private UserData mUserData;
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/**
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* Triggers a custom UI before before autofilling the screen with any data set in this
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* response.
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*
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* <p><b>Note:</b> Although the name of this method suggests that it should be used just for
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* authentication flow, it can be used for other advanced flows; see {@link AutofillService}
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* for examples.
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*
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* <p>This is typically useful when a user interaction is required to unlock their
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* data vault if you encrypt the data set labels and data set data. It is recommended
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* to encrypt only the sensitive data and not the data set labels which would allow
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* auth on the data set level leading to a better user experience. Note that if you
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* use sensitive data as a label, for example an email address, then it should also
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* be encrypted. The provided {@link android.app.PendingIntent intent} must be an
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* {@link Activity} which implements your authentication flow. Also if you provide an auth
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* intent you also need to specify the presentation view to be shown in the fill UI
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* for the user to trigger your authentication flow.
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*
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* <p>When a user triggers autofill, the system launches the provided intent
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* whose extras will have the
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* {@link android.view.autofill.AutofillManager#EXTRA_ASSIST_STRUCTURE screen
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* content} and your {@link android.view.autofill.AutofillManager#EXTRA_CLIENT_STATE
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* client state}. Once you complete your authentication flow you should set the
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* {@link Activity} result to {@link android.app.Activity#RESULT_OK} and set the
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* {@link android.view.autofill.AutofillManager#EXTRA_AUTHENTICATION_RESULT} extra
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* with the fully populated {@link FillResponse response} (or {@code null} if the screen
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* cannot be autofilled).
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*
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* <p>For example, if you provided an empty {@link FillResponse response} because the
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* user's data was locked and marked that the response needs an authentication then
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* in the response returned if authentication succeeds you need to provide all
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* available data sets some of which may need to be further authenticated, for
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* example a credit card whose CVV needs to be entered.
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*
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* <p>If you provide an authentication intent you must also provide a presentation
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* which is used to visualize visualize the response for triggering the authentication
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* flow.
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*
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* <p><b>Note:</b> Do not make the provided pending intent
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* immutable by using {@link android.app.PendingIntent#FLAG_IMMUTABLE} as the
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* platform needs to fill in the authentication arguments.
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*
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* <p>Theme does not work with RemoteViews layout. Avoid hardcoded text color
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* or background color: Autofill on different platforms may have different themes.
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*
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* @param authentication Intent to an activity with your authentication flow.
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* @param presentation The presentation to visualize the response.
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* @param ids id of Views that when focused will display the authentication UI.
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*
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* @return This builder.
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*
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* @throws IllegalArgumentException if any of the following occurs:
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* <ul>
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* <li>{@code ids} is {@code null}</li>
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* <li>{@code ids} is empty</li>
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* <li>{@code ids} contains a {@code null} element</li>
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* <li>both {@code authentication} and {@code presentation} are {@code null}</li>
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* <li>both {@code authentication} and {@code presentation} are non-{@code null}</li>
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* </ul>
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*
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* @throws IllegalStateException if a {@link #setHeader(RemoteViews) header} or a
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* {@link #setFooter(RemoteViews) footer} are already set for this builder.
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*
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* @see android.app.PendingIntent#getIntentSender()
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*/
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@NonNull
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public Builder setAuthentication(@NonNull AutofillId[] ids,
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@Nullable IntentSender authentication, @Nullable RemoteViews presentation) {
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throwIfDestroyed();
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throwIfDisableAutofillCalled();
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if (mHeader != null || mFooter != null) {
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throw new IllegalStateException("Already called #setHeader() or #setFooter()");
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}
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if (authentication == null ^ presentation == null) {
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throw new IllegalArgumentException("authentication and presentation"
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+ " must be both non-null or null");
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}
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mAuthentication = authentication;
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mPresentation = presentation;
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mAuthenticationIds = assertValid(ids);
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return this;
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}
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/**
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* Specifies views that should not trigger new
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* {@link AutofillService#onFillRequest(FillRequest, android.os.CancellationSignal,
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* FillCallback)} requests.
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*
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* <p>This is typically used when the service cannot autofill the view; for example, a
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* text field representing the result of a Captcha challenge.
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*/
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@NonNull
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public Builder setIgnoredIds(AutofillId...ids) {
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throwIfDestroyed();
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mIgnoredIds = ids;
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return this;
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}
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/**
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* Adds a new {@link Dataset} to this response.
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*
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* <p><b>Note: </b> on Android {@link android.os.Build.VERSION_CODES#O}, the total number of
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* datasets is limited by the Binder transaction size, so it's recommended to keep it
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* small (in the range of 10-20 at most) and use pagination by adding a fake
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* {@link Dataset.Builder#setAuthentication(IntentSender) authenticated dataset} at the end
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* with a presentation string like "Next 10" that would return a new {@link FillResponse}
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* with the next 10 datasets, and so on. This limitation was lifted on
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* Android {@link android.os.Build.VERSION_CODES#O_MR1}, although the Binder transaction
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* size can still be reached if each dataset itself is too big.
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*
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* @return This builder.
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*/
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@NonNull
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public Builder addDataset(@Nullable Dataset dataset) {
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throwIfDestroyed();
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throwIfDisableAutofillCalled();
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if (dataset == null) {
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return this;
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}
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if (mDatasets == null) {
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mDatasets = new ArrayList<>();
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}
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if (!mDatasets.add(dataset)) {
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return this;
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}
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return this;
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}
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/**
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* Sets the {@link SaveInfo} associated with this response.
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*
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* @return This builder.
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*/
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public @NonNull Builder setSaveInfo(@NonNull SaveInfo saveInfo) {
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throwIfDestroyed();
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throwIfDisableAutofillCalled();
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mSaveInfo = saveInfo;
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return this;
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}
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/**
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* Sets a bundle with state that is passed to subsequent APIs that manipulate this response.
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*
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* <p>You can use this bundle to store intermediate state that is passed to subsequent calls
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* to {@link AutofillService#onFillRequest(FillRequest, android.os.CancellationSignal,
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* FillCallback)} and {@link AutofillService#onSaveRequest(SaveRequest, SaveCallback)}, and
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* you can also retrieve it by calling {@link FillEventHistory.Event#getClientState()}.
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*
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* <p>If this method is called on multiple {@link FillResponse} objects for the same
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* screen, just the latest bundle is passed back to the service.
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*
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* @param clientState The custom client state.
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* @return This builder.
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*/
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@NonNull
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public Builder setClientState(@Nullable Bundle clientState) {
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throwIfDestroyed();
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throwIfDisableAutofillCalled();
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mClientState = clientState;
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return this;
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}
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/**
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* Sets which fields are used for
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* <a href="AutofillService.html#FieldClassification">field classification</a>
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*
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* <p><b>Note:</b> This method automatically adds the
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* {@link FillResponse#FLAG_TRACK_CONTEXT_COMMITED} to the {@link #setFlags(int) flags}.
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* @throws IllegalArgumentException is length of {@code ids} args is more than
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* {@link UserData#getMaxFieldClassificationIdsSize()}.
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* @throws IllegalStateException if {@link #build()} or {@link #disableAutofill(long)} was
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* already called.
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* @throws NullPointerException if {@code ids} or any element on it is {@code null}.
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*/
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@NonNull
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public Builder setFieldClassificationIds(@NonNull AutofillId... ids) {
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throwIfDestroyed();
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throwIfDisableAutofillCalled();
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Preconditions.checkArrayElementsNotNull(ids, "ids");
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Preconditions.checkArgumentInRange(ids.length, 1,
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UserData.getMaxFieldClassificationIdsSize(), "ids length");
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mFieldClassificationIds = ids;
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mFlags |= FLAG_TRACK_CONTEXT_COMMITED;
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return this;
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}
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/**
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* Sets flags changing the response behavior.
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*
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* @param flags a combination of {@link #FLAG_TRACK_CONTEXT_COMMITED} and
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* {@link #FLAG_DISABLE_ACTIVITY_ONLY}, or {@code 0}.
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*
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* @return This builder.
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*/
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@NonNull
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public Builder setFlags(@FillResponseFlags int flags) {
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throwIfDestroyed();
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mFlags = Preconditions.checkFlagsArgument(flags,
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FLAG_TRACK_CONTEXT_COMMITED | FLAG_DISABLE_ACTIVITY_ONLY);
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return this;
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}
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/**
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* Disables autofill for the app or activity.
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*
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* <p>This method is useful to optimize performance in cases where the service knows it
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* can not autofill an app—for example, when the service has a list of "blacklisted"
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* apps such as office suites.
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*
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* <p>By default, it disables autofill for all activities in the app, unless the response is
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* {@link #setFlags(int) flagged} with {@link #FLAG_DISABLE_ACTIVITY_ONLY}.
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*
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* <p>Autofill for the app or activity is automatically re-enabled after any of the
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* following conditions:
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*
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* <ol>
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* <li>{@code duration} milliseconds have passed.
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* <li>The autofill service for the user has changed.
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* <li>The device has rebooted.
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* </ol>
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*
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* <p><b>Note:</b> Activities that are running when autofill is re-enabled remain
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* disabled for autofill until they finish and restart.
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*
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* @param duration duration to disable autofill, in milliseconds.
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*
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* @return this builder
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*
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* @throws IllegalArgumentException if {@code duration} is not a positive number.
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* @throws IllegalStateException if either {@link #addDataset(Dataset)},
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* {@link #setAuthentication(AutofillId[], IntentSender, RemoteViews)},
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* {@link #setSaveInfo(SaveInfo)}, {@link #setClientState(Bundle)}, or
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* {@link #setFieldClassificationIds(AutofillId...)} was already called.
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*/
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@NonNull
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public Builder disableAutofill(long duration) {
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throwIfDestroyed();
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if (duration <= 0) {
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throw new IllegalArgumentException("duration must be greater than 0");
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}
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if (mAuthentication != null || mDatasets != null || mSaveInfo != null
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|| mFieldClassificationIds != null || mClientState != null) {
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throw new IllegalStateException("disableAutofill() must be the only method called");
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}
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mDisableDuration = duration;
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return this;
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}
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/**
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* Sets a header to be shown as the first element in the list of datasets.
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*
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* <p>When this method is called, you must also {@link #addDataset(Dataset) add a dataset},
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* otherwise {@link #build()} throws an {@link IllegalStateException}. Similarly, this
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* method should only be used on {@link FillResponse FillResponses} that do not require
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* authentication (as the header could have been set directly in the main presentation in
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* these cases).
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*
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* <p>Theme does not work with RemoteViews layout. Avoid hardcoded text color
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* or background color: Autofill on different platforms may have different themes.
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*
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* @param header a presentation to represent the header. This presentation is not clickable
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* —calling
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* {@link RemoteViews#setOnClickPendingIntent(int, android.app.PendingIntent)} on it would
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* have no effect.
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*
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* @return this builder
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*
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* @throws IllegalStateException if an
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* {@link #setAuthentication(AutofillId[], IntentSender, RemoteViews) authentication} was
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* already set for this builder.
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*/
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// TODO(b/69796626): make it sticky / update javadoc
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@NonNull
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public Builder setHeader(@NonNull RemoteViews header) {
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throwIfDestroyed();
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throwIfAuthenticationCalled();
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mHeader = Preconditions.checkNotNull(header);
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return this;
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}
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/**
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* Sets a footer to be shown as the last element in the list of datasets.
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*
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* <p>When this method is called, you must also {@link #addDataset(Dataset) add a dataset},
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* otherwise {@link #build()} throws an {@link IllegalStateException}. Similarly, this
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* method should only be used on {@link FillResponse FillResponses} that do not require
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* authentication (as the footer could have been set directly in the main presentation in
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* these cases).
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*
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* <p>Theme does not work with RemoteViews layout. Avoid hardcoded text color
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* or background color: Autofill on different platforms may have different themes.
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*
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* @param footer a presentation to represent the footer. This presentation is not clickable
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* —calling
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* {@link RemoteViews#setOnClickPendingIntent(int, android.app.PendingIntent)} on it would
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* have no effect.
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*
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* @return this builder
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*
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* @throws IllegalStateException if the FillResponse
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* {@link #setAuthentication(AutofillId[], IntentSender, RemoteViews)
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* requires authentication}.
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*/
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// TODO(b/69796626): make it sticky / update javadoc
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@NonNull
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public Builder setFooter(@NonNull RemoteViews footer) {
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throwIfDestroyed();
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throwIfAuthenticationCalled();
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mFooter = Preconditions.checkNotNull(footer);
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return this;
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}
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/**
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* Sets a specific {@link UserData} for field classification for this request only.
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*
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* <p>Any fields in this UserData will override corresponding fields in the generic
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* UserData object
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*
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* @return this builder
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* @throws IllegalStateException if the FillResponse
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* {@link #setAuthentication(AutofillId[], IntentSender, RemoteViews)
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* requires authentication}.
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*/
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@NonNull
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public Builder setUserData(@NonNull UserData userData) {
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throwIfDestroyed();
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throwIfAuthenticationCalled();
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mUserData = Preconditions.checkNotNull(userData);
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return this;
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}
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/**
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* Builds a new {@link FillResponse} instance.
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*
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* @throws IllegalStateException if any of the following conditions occur:
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* <ol>
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* <li>{@link #build()} was already called.
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* <li>No call was made to {@link #addDataset(Dataset)},
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* {@link #setAuthentication(AutofillId[], IntentSender, RemoteViews)},
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* {@link #setSaveInfo(SaveInfo)}, {@link #disableAutofill(long)},
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* {@link #setClientState(Bundle)},
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* or {@link #setFieldClassificationIds(AutofillId...)}.
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* <li>{@link #setHeader(RemoteViews)} or {@link #setFooter(RemoteViews)} is called
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* without any previous calls to {@link #addDataset(Dataset)}.
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* </ol>
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*
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* @return A built response.
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*/
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@NonNull
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public FillResponse build() {
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throwIfDestroyed();
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if (mAuthentication == null && mDatasets == null && mSaveInfo == null
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&& mDisableDuration == 0 && mFieldClassificationIds == null
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&& mClientState == null) {
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throw new IllegalStateException("need to provide: at least one DataSet, or a "
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+ "SaveInfo, or an authentication with a presentation, "
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+ "or a FieldsDetection, or a client state, or disable autofill");
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}
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if (mDatasets == null && (mHeader != null || mFooter != null)) {
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throw new IllegalStateException(
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"must add at least 1 dataset when using header or footer");
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}
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mDestroyed = true;
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return new FillResponse(this);
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}
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private void throwIfDestroyed() {
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if (mDestroyed) {
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throw new IllegalStateException("Already called #build()");
|
}
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}
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private void throwIfDisableAutofillCalled() {
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if (mDisableDuration > 0) {
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throw new IllegalStateException("Already called #disableAutofill()");
|
}
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}
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private void throwIfAuthenticationCalled() {
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if (mAuthentication != null) {
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throw new IllegalStateException("Already called #setAuthentication()");
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}
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}
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}
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/////////////////////////////////////
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// Object "contract" methods. //
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/////////////////////////////////////
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@Override
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public String toString() {
|
if (!sDebug) return super.toString();
|
|
// TODO: create a dump() method instead
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final StringBuilder builder = new StringBuilder(
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"FillResponse : [mRequestId=" + mRequestId);
|
if (mDatasets != null) {
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builder.append(", datasets=").append(mDatasets.getList());
|
}
|
if (mSaveInfo != null) {
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builder.append(", saveInfo=").append(mSaveInfo);
|
}
|
if (mClientState != null) {
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builder.append(", hasClientState");
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}
|
if (mPresentation != null) {
|
builder.append(", hasPresentation");
|
}
|
if (mHeader != null) {
|
builder.append(", hasHeader");
|
}
|
if (mFooter != null) {
|
builder.append(", hasFooter");
|
}
|
if (mAuthentication != null) {
|
builder.append(", hasAuthentication");
|
}
|
if (mAuthenticationIds != null) {
|
builder.append(", authenticationIds=").append(Arrays.toString(mAuthenticationIds));
|
}
|
builder.append(", disableDuration=").append(mDisableDuration);
|
if (mFlags != 0) {
|
builder.append(", flags=").append(mFlags);
|
}
|
if (mFieldClassificationIds != null) {
|
builder.append(Arrays.toString(mFieldClassificationIds));
|
}
|
if (mUserData != null) {
|
builder.append(", userData=").append(mUserData);
|
}
|
return builder.append("]").toString();
|
}
|
|
/////////////////////////////////////
|
// Parcelable "contract" methods. //
|
/////////////////////////////////////
|
|
@Override
|
public int describeContents() {
|
return 0;
|
}
|
|
@Override
|
public void writeToParcel(Parcel parcel, int flags) {
|
parcel.writeParcelable(mDatasets, flags);
|
parcel.writeParcelable(mSaveInfo, flags);
|
parcel.writeParcelable(mClientState, flags);
|
parcel.writeParcelableArray(mAuthenticationIds, flags);
|
parcel.writeParcelable(mAuthentication, flags);
|
parcel.writeParcelable(mPresentation, flags);
|
parcel.writeParcelable(mHeader, flags);
|
parcel.writeParcelable(mFooter, flags);
|
parcel.writeParcelable(mUserData, flags);
|
parcel.writeParcelableArray(mIgnoredIds, flags);
|
parcel.writeLong(mDisableDuration);
|
parcel.writeParcelableArray(mFieldClassificationIds, flags);
|
parcel.writeInt(mFlags);
|
parcel.writeInt(mRequestId);
|
}
|
|
public static final @android.annotation.NonNull Parcelable.Creator<FillResponse> CREATOR =
|
new Parcelable.Creator<FillResponse>() {
|
@Override
|
public FillResponse createFromParcel(Parcel parcel) {
|
// Always go through the builder to ensure the data ingested by
|
// the system obeys the contract of the builder to avoid attacks
|
// using specially crafted parcels.
|
final Builder builder = new Builder();
|
final ParceledListSlice<Dataset> datasetSlice = parcel.readParcelable(null);
|
final List<Dataset> datasets = (datasetSlice != null) ? datasetSlice.getList() : null;
|
final int datasetCount = (datasets != null) ? datasets.size() : 0;
|
for (int i = 0; i < datasetCount; i++) {
|
builder.addDataset(datasets.get(i));
|
}
|
builder.setSaveInfo(parcel.readParcelable(null));
|
builder.setClientState(parcel.readParcelable(null));
|
|
// Sets authentication state.
|
final AutofillId[] authenticationIds = parcel.readParcelableArray(null,
|
AutofillId.class);
|
final IntentSender authentication = parcel.readParcelable(null);
|
final RemoteViews presentation = parcel.readParcelable(null);
|
if (authenticationIds != null) {
|
builder.setAuthentication(authenticationIds, authentication, presentation);
|
}
|
final RemoteViews header = parcel.readParcelable(null);
|
if (header != null) {
|
builder.setHeader(header);
|
}
|
final RemoteViews footer = parcel.readParcelable(null);
|
if (footer != null) {
|
builder.setFooter(footer);
|
}
|
final UserData userData = parcel.readParcelable(null);
|
if (userData != null) {
|
builder.setUserData(userData);
|
}
|
|
builder.setIgnoredIds(parcel.readParcelableArray(null, AutofillId.class));
|
final long disableDuration = parcel.readLong();
|
if (disableDuration > 0) {
|
builder.disableAutofill(disableDuration);
|
}
|
final AutofillId[] fieldClassifactionIds =
|
parcel.readParcelableArray(null, AutofillId.class);
|
if (fieldClassifactionIds != null) {
|
builder.setFieldClassificationIds(fieldClassifactionIds);
|
}
|
builder.setFlags(parcel.readInt());
|
|
final FillResponse response = builder.build();
|
response.setRequestId(parcel.readInt());
|
|
return response;
|
}
|
|
@Override
|
public FillResponse[] newArray(int size) {
|
return new FillResponse[size];
|
}
|
};
|
}
|
